QQuakeFacts
QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us7000qug7
USGS us7000qug7

6 Sept 2025, 21:40

81 km SSW of Nikolski, Alaska

A magnitude 5.4 mww earthquake at 37.7 km depth.

Depth37.7 kmPublished hypocentral depth
Tsunami flagFlaggedUSGS catalog flag, not a current warning
Updated29 August 2026Latest timestamp stored in this record

Published location

Where is 81 km SSW of Nikolski, Alaska?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

52.315300, -169.498800

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Map data © OpenStreetMap contributors

What the numbers mean

Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.

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Nearby events with a similar magnitude

M 5.4

186 km SW of Nikolski, Alaska

M 5.4

85 km SSE of Nikolski, Alaska

M 5.4

134 km SSW of Nikolski, Alaska

M 5.4

174 km E of Atka, Alaska

M 5.4

184 km ESE of Atka, Alaska

M 5.4

156 km ENE of Atka, Alaska

Catalog fields and provenance
Event ID
us7000qug7
Coordinates
52.3153, -169.4988
Network
us
Significance
449